Asterism - Dictionary Definition and Overview

Asterism :  (noun)
1: (mineralogy) a six-rayed star-shaped figure seen in some crystal structures under reflected or transmitted light
2: (astronomy) a cluster of stars (or a small constellation)

Based on WordNet 2.0

Asterism : \As`ter*ism\, n. [Gr. ?, fr. 'asth`r star; cf. F. ast['e]risme.] 1. (Astron.) (a) A constellation. [Obs.] (b) A small cluster of stars.

2. (Printing) (a) An asterisk, or mark of reference. [R.] (b) Three asterisks placed in this manner, [asterism], to direct attention to a particular passage.

3. (Crystallog.) An optical property of some crystals which exhibit a star-shaped by reflected light, as star sapphire, or by transmitted light, as some mica.

Based on WordNet (r) 2.0 (August 2003)
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